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Q: engine emits blue smoke at first start on 2001 Toyota RAV4

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
Hi, my engine when cold emits blue smoke for 5 minutes every-time i start then it's gone and back to normal, please kindly help me how i can solve this problem.
Thank you so much.
No car image 94a1663db56199c5353592009e34aaa51078a2469bed068bb8d6f0ba43accf97
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After Engine shuts down hot engine oil is introduced into combustion chamber either by weak or bad cylinder head valve seals or weak or bad engine piston rings. As vehicle sits overnight and vehicle is started excess engine oil in combustion chamber is burned causing blue smoke. Your local repair shop or dealer should perform a diagnostic of your engine to determine overall condition.
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